Migration of polluting substances in the conditions of regulation of a river flow (on the example of Ural river upperwaters)

The analysis of a natural conditions and anthropogenic factors of formation of an ecological and hydrochemical situation in the rivers of the upper part of Urals river basin is carried out. Transference of polluting substances partially occurs in the conditions of the complicated water exchange at regulation of the rivers flow. The carrying out researches confirms non-uniformity of concentration of heavy metals in river water during various seasons of the year, mainly was conditioned by distinctions in indicators of a rivers flow. Duration and intensity of technogenic influence has led to considerable easing of parameters of stability of river systems.